Start with the Preamble ... "establish Justice" ... "secure the Blessings of Liberty to ourselves and our Posterity." I don't think that allows one to murder our Posterity, do you? Or are you trying to argue that the right to exist is not Constitutionally protected?
The “personhood” of the unborn is not recognized in U.S. law so if the Court is to rule on that basis then U.S. law first needs to change in that regard.
FYI: This Macchiavellian ends-justify-the-means approach to the law inevitably turns around and bites you in the butt when it’s your pet issue on the other side of a ruling..
But I will grant you that the Supremes have so contorted the law in the past 40 years that this is all just tilting at windmills.
PS. A federal government that doesn’t have the power to tell the states to ban a procedure also doesn’t have the power to tell the states to un-ban a procedure...